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* ext/stringio/stringio.c (strio_read): return new string if nil

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is explicitly given as a buffer ([Bug #5207]), otherwise set the
  encoding.  also removed dead code.


git-svn-id: svn+ssh://ci.ruby-lang.org/ruby/trunk@33010 b2dd03c8-39d4-4d8f-98ff-823fe69b080e
This commit is contained in:
nobu 2011-08-20 01:43:26 +00:00
parent e9930a4b56
commit dcb7cc1a8b
3 changed files with 26 additions and 10 deletions
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6
ChangeLog
View file

@ -1,3 +1,9 @@
Sat Aug 20 10:43:24 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* ext/stringio/stringio.c (strio_read): return new string if nil
is explicitly given as a buffer ([Bug #5207]), otherwise set the
encoding. also removed dead code.
Fri Aug 19 14:25:51 2011 Nobuyoshi Nakada <nobu@ruby-lang.org>
* process.c (proc_spawn_v, proc_spawn): should not wait the

22
ext/stringio/stringio.c
View file

@ -1219,12 +1219,15 @@ strio_read(int argc, VALUE *argv, VALUE self)
struct StringIO *ptr = readable(StringIO(self));
VALUE str = Qnil;
long len;
int binary = 0;
switch (argc) {
case 2:
str = argv[1];
StringValue(str);
rb_str_modify(str);
if (!NIL_P(str)) {
StringValue(str);
rb_str_modify(str);
}
case 1:
if (!NIL_P(argv[0])) {
len = NUM2LONG(argv[0]);
@ -1235,6 +1238,7 @@ strio_read(int argc, VALUE *argv, VALUE self)
if (!NIL_P(str)) rb_str_resize(str, 0);
return Qnil;
}
binary = 1;
break;
}
/* fall through */
@ -1258,21 +1262,19 @@ strio_read(int argc, VALUE *argv, VALUE self)
}
if (NIL_P(str)) {
str = strio_substr(ptr, ptr->pos, len);
if (argc > 0) rb_enc_associate(str, rb_ascii8bit_encoding());
if (binary) rb_enc_associate(str, rb_ascii8bit_encoding());
}
else {
long rest = RSTRING_LEN(ptr->string) - ptr->pos;
if (len > rest) len = rest;
rb_str_resize(str, len);
MEMCPY(RSTRING_PTR(str), RSTRING_PTR(ptr->string) + ptr->pos, char, len);
if (binary)
rb_enc_associate(str, rb_ascii8bit_encoding());
else
rb_enc_copy(str, ptr->string);
}
if (NIL_P(str)) {
str = rb_str_new(0, 0);
len = 0;
}
else {
ptr->pos += len = RSTRING_LEN(str);
}
ptr->pos += RSTRING_LEN(str);
return str;
}

8
test/stringio/test_stringio.rb
View file

@ -418,6 +418,14 @@ class TestStringIO < Test::Unit::TestCase
assert_equal("\u3042\u3044", f.read)
f.rewind
assert_equal("\u3042\u3044".force_encoding(Encoding::ASCII_8BIT), f.read(f.size))
bug5207 = '[ruby-core:39026]'
f.rewind
assert_equal("\u3042\u3044", f.read(nil, nil), bug5207)
f.rewind
s = ""
f.read(nil, s)
assert_equal("\u3042\u3044", s, bug5207)
end
def test_readpartial